Motion-picture machine.



B. STECHBAHT. MOT|0N PICIURE MACH APPLICATION FILED FEB. 5,

I NE.

Patented Dec. 10, 1918.

UNITED STATES PATENT OFFICE.

BRUNO S TECHBART, OF CHICAGO, ILLINOIS, ASSIGNOR, BY MESNE ASSIGNMENTS,TO AMERICAN PROJECTING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OFDELAWARE.

MOTION-PICTURE MACHINE.

Patented Dec. 10, @918.

Original application filed May 7, 1917, Serial, No. 166,865. Divided andthis application filed Februay5,

1918. Serial No.215,447.

T 0 all whom it may concern:

Be it known that I, BRUNO STECHBART, a citizen of the United States ofAmerica, and a resident of Chicago, in the county of Cook, State ofIllinois, have invented certain new and useful Improvements in M0-tion-Picture Machines, of which the following is a specification. I v

This invention relates to the type of portable motion picture machinesdescribed in detail in my prior application for Letters Patent, SerialNo. 166,865, filed May 7, 1917,

whereof the present application is a division.

The object of the present improvement is to provide a simple andefiicient means for effecting a tilting. adjustment of the machine, as awhole, in a vertical plane in attaining a proper positioning of the p10-tures on the exhibition or view screen, all

I as will hereinafter more fully appear.

In the accompanying drawings Figure 1, is a perspective view of a port--able motion picture machine of the rectangular box form, and having thepresent improvement applied.

Fig. 2, is an elevation of the side of the machine opposite to thatshown'in Fig. 1. Fig. 3, is an enlarged detailvertical section,=illustrating the adjusting means of the present improvement.

Like reference numeral parts in the several views.

Referring to the drawing, 1 designates a box or casing, preferably ofthe rectangular indicate like form shown, and adapted to inclose thefilmv feeding, filni guiding and film reeling mechanisms of a motionpicture machine, and afford support for the usual projection objective2', lamp house 3 and condenser usually associated with the aforesaidmechanisms. In construction shown the .main portions of the side wallsof the casing are hinged to the other portion of the casing toconstitute entry doors 4 and 5 to the inclosed mechanisms and parts.

- 6 designates a removable crank or handle for operating the filmfeeding mechanism, and 7 designates a removable crank or handie foroperating the film rewinding mechanism of the machine, as described indetail in myaforesaid application Serial No. 166,865.

S designates a pair of adjustable legs, preferably formed withsemi-spherical. enlargements 9 at their lower ends, and having movementin a plane at right-angles to the optlcal axis-and light passage of themachine. The legs 8 have engagement in guide orifices in the bottom webof the casing 1, and in guide bushings 10 in the front web of saidcasing, as shown.

11 designate clamping screws associated with the bushings 10 and adaptedto clamp the legs 8 at their required adjustments.

12 designates companion semi-spherical buttons attached to the aforesaidbottom web' of the casing lnear' the rear corners of the same,andadapted to act as rockers for the casing 1 in the tilting adjustments'of the same, which in the present structure is attained by theadjustment of the legs 8 aforesaid to properly tilt the casing 1 andobjectlve 2, so that the pictures projected Wlll be displayed in properposition on the view or exhibition screen. i

Having thus fully described my said in- 'vention what I claim as new anddesire to secure by Letters Patent, is z 1. In a motion'pict'uremachine, the combmation of a casing, an objective arranged horlzontallynearthe upper and front end of the same, a leg slidingly arranged atthelower and front end of the casing in right angle relation to the axis ofthe objective, and means for securing said leg at the requiredadjustment, substantially as set forth.

2. In a motion picture machine, the combination of a casing, anobjective arranged horizontally near the upper and front end ofthe'same, a leg slidingly arranged at the lower and front end ofthecasing in rightangle relation. to the axis of the objective, meansfor securing said leg at the required adjustment, and a supportingbutton attached to the lower and rear end of the easing, substantiallyas set forth.

. Signed at Chicago, Illinois, this 1st day of February, 1918.

' BRUNO STECHBART.

